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2018-06-04Merge branch 'selftests-net-various'David S. Miller
Willem de Bruijn says: ==================== selftests/net: various A few odds and ends to network tests: - msg_zerocopy: run as part of kselftest - udp gso: add missing bounds test for minimal sizes - psocket_snd: initial basic conformance test ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-04selftests/net: add packet socket packet_snd testWillem de Bruijn
Add regression tests for PF_PACKET transmission using packet_snd. The TPACKET ring interface has tests for transmission and reception. This is an initial stab at the same for the send call based interface. Packets are sent over loopback, then read twice. The entire packet is read from another packet socket and compared. The packet is also verified to arrive at a UDP socket for protocol conformance. The test sends a packet over loopback, testing the following options (not the full cross-product): - SOCK_DGRAM - SOCK_RAW - vlan tag - qdisc bypass - bind() and sendto() - virtio_net_hdr - csum offload (NOT actual csum feature, ignored on loopback) - gso Besides these basic functionality tests, the test runs from a set of bounds checks, positive and negative. Running over loopback, which has dev->min_header_len, it cannot generate variable length hhlen. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-04selftests/net: udpgso: test small gso_size boundary conditionsWillem de Bruijn
Verify that udpgso can generate segments smaller than device mtu, down to the extreme case of 1B gso_size. Verify that irrespective of gso_size, udpgso restricts the number of segments it will generate per call (UDP_MAX_SEGMENTS). Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-04selftests/net: enable msg_zerocopy testWillem de Bruijn
The existing msg_zerocopy test takes additional protocol arguments. Add a variant that takes no arguments and runs all supported variants. Call this from kselftest. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-04net: virtio: simplify the virtnet_find_vqsTonghao Zhang
Use the common free functions while return successfully. Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-04perf report: No need to have report_callchain_help as a globalArnaldo Carvalho de Melo
It is used in a single place, move the declaration to that function. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-p650ofrl8xike4dewxod51gg@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf test: Use header file util/debug.hThomas Richter
Use the header file util/debug.h instead of declaration of verbose variable. Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Link: http://lkml.kernel.org/r/20180528134817.36643-1-tmricht@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Move objdump_path to struct annotation_optionsArnaldo Carvalho de Melo
One more step in grouping annotation options. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-sogzdhugoavm6fyw60jnb0vs@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf hists browser: Pass annotation_options from tool to browserArnaldo Carvalho de Melo
So that things changed in the command line may percolate to the browser code without using globals. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-5daawc40zhl6gcs600com1ua@git.kernel.org [ Merged fix for NO_SLANG=1 build provided by Jiri Olsa ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Move disassembler_style global to annotation_optionsArnaldo Carvalho de Melo
Continuing to group annotation specific stuff into a struct. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-p3cdhltj58jt0byjzg3g7obx@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Adopt anotation options from symbol_confArnaldo Carvalho de Melo
Continuing to group annotation options in an annotation specific struct. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-astei92tzxp4yccag5pxb2h7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Pass annotation_options to symbol__annotate()Arnaldo Carvalho de Melo
Now all callers to symbol__disassemble() can hand it the per-tool annotation_options, which will allow us to remove lots of stuff from symbol_options, the kitchen sink of perf configs, reducing its size and getting annotation specific stuff grouped together. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-vpr7ys7ggvs2fzpg8wbjcw7e@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf srcline: Make hist_entry srcline helper consistent with map'sArnaldo Carvalho de Melo
No need to have "get_srcline", plain hist_entry__srcline() is enough and shorter. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-irhzpfmgdaf6cyk0uqqexoh9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf sort: Introduce addr_map_symbol__srcline() to make code more compactArnaldo Carvalho de Melo
Since we have 'struct addr_map_symbol' and the srcline sort order keys all operate on those, make the code more compact by introducing a function that receives a pointer to such struct and expands the arguments to map__srcline(). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-j540wq7n3ukkh70gk5be0in5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf srcline: Introduce map__srcline() to make code more compactArnaldo Carvalho de Melo
Replacing a common open coded sequence. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-2d7d1nzd3ksqornloqeer99r@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate stdio: Use annotation_options consistentlyArnaldo Carvalho de Melo
Accross all the routines, this way we can have eventually have a consistent set of defaults for all UIs. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-6qgtixurjgdk5u0n3rw78ges@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Add comment about annotated_src->nr_histogramsArnaldo Carvalho de Melo
When we have multiple groups in an evlist, say: $ perf stat -e '{cycles,instructions},{cache-references,cache-misses}' sleep 1 Performance counter stats for 'sleep 1': 343,134 cycles:u 249,292 instructions:u # 0.73 insn per cycle 15,556 cache-references:u 8,925 cache-misses:u # 57.373 % of all cache refs 1.000957550 seconds time elapsed $ Then the perf_evsel instances for the two group leaders ("cycles" and "cache-references") will have evsel->nr_members set to 2, while all the evsel->evlist->nr_entries will be set to 4, so we can't use evsel->evlist->nr_entries everywhere, as event groups need to be taken into account. But this probably requires us to audit at least the forced-group code, where we want all of the events to be in a "group", to see them all in the screen, one column for each, even knowing that they were not necessarily scheduled to count at the same time by the kernel perf subsystem. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-2g0vwqnc49wl4ttjk8dvpgcc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf tools: Ditch the symbol_conf.nr_events globalArnaldo Carvalho de Melo
Since over time the places where we need to pass this got reduced because we can obtain it from evsel->evlist->nr_entries, no need to have this global anymore. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-ovhikrfj8pzdv93yq3gt6sei@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Replace symbol__alloc_hists() with symbol__hists()Arnaldo Carvalho de Melo
Its a bit shorter, so ditch the old symbol__alloc_hists() function. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-m7tienxk7dijh5ln62yln1m9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Stop using symbol_conf.nr_events global in symbol__hists()Arnaldo Carvalho de Melo
Since now we have evsel->evlist->nr_entries in the single place calling this function, use it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-9mgosbqa977h39j4i9ys8t75@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Introduce symbol__cycle_hists()Arnaldo Carvalho de Melo
In this case we're wanting just notes->src->cycles_hist, allocating it if needed. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-pqj81aneunhftlntm66tmhz0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Introduce symbol__hists()Arnaldo Carvalho de Melo
In this case we're wanting just notes->src->histograms, allocating it if needed. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-4iatualjskia7sojmdb65cmm@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: __symbol__inc_addr_samples() needs just annotated_sourceArnaldo Carvalho de Melo
It only operates on the histograms, so no need for the encompassing 'struct annotation'. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-2se2v7rrjil0kwqywks04ey2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Introduce annotated_source__alloc_histogramsArnaldo Carvalho de Melo
So that we can call it independently, in contexts were we know we already have notes->src allocated. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-f5fn7tr1asey6g013wavpn4c@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Introduce constructor/destructor for annotated_sourceArnaldo Carvalho de Melo
More stuff will go in there, all the parts that are not needed when a symbol had no samples and that were mistakenly added to 'struct annotation'. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-u4761kyzhixw9ydk6kib3f0o@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Split allocation of annotated_source structArnaldo Carvalho de Melo
So that we can allocate just the notes->src->cyc_hist, that, unlike notes->src->histograms, is not per event, and in paths where we need to lazily allocate notes->src->cyc_hist we don't have the number of events handy to also allocate ->histograms. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-tsx7dhxzpi0criyx0sio3pz3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: __symbol__acount_cycles doesn't need notesArnaldo Carvalho de Melo
It only operates on the notes->src->cyc_hist, just pass that to it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-zd1cu4zwmu21k0cxlr83y6vr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf annotate: Pass perf_evsel instead of just evsel->idxArnaldo Carvalho de Melo
The code gets shorter and we'll be able to use evsel->evlist in a followup patch. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-t0s7vy19wq5kak74kavm8swf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf tools: No need to check if the argument to __get() function is NULLArnaldo Carvalho de Melo
Those functions always check if the argument is NULL before trying to grab a reference count, and also will return the received object, so, to make code more compact, no need to check for NULL. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krister Johansen <kjlx@templeofstupid.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-i9wycjdxh0fwhryu55lmafks@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf cgroup: Make evlist__find_cgroup() more compactArnaldo Carvalho de Melo
By taking advantage that __get() routines return the pointer to the object for which a reference count is being get. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-xnvd07rdxliy04oi062samik@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf probe: Use return of map__get() to make code more compactArnaldo Carvalho de Melo
The __get() idiom returns a reference count for the object passed, i.e. all functions of this type return the object passed, so take advantage of that to make the code more compact. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-ds6vdm7clh070512rpydidsc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04perf tools: Remove dead quote.[ch] codeArnaldo Carvalho de Melo
In c68677014bac ("perf tools: Remove support for command aliases") we removed the only remaining use of a function provided by these files, so ditch it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-mgnzqbi46gucs48d7bzfwr55@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04Merge remote-tracking branch 'tip/perf/urgent' into perf/coreArnaldo Carvalho de Melo
To pick up fixes. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-06-04powerpc/powernv: copy/paste - Mask SO bit in CRHaren Myneni
NX can set the 3rd bit in CR register for XER[SO] (Summary overflow) which is not related to paste request. The current paste function returns failure for a successful request when this bit is set. So mask this bit and check the proper return status. Fixes: 2392c8c8c045 ("powerpc/powernv/vas: Define copy/paste interfaces") Cc: stable@vger.kernel.org # v4.14+ Signed-off-by: Haren Myneni <haren@us.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-06-04gfs2: Iomap cleanups and improvementsAndreas Gruenbacher
Clean up gfs2_iomap_alloc and gfs2_iomap_get. Document how gfs2_iomap_alloc works: it now needs to be called separately after gfs2_iomap_get where necessary; this will be used later by iomap write. Move gfs2_iomap_ops into bmap.c. Introduce a new gfs2_iomap_get_alloc helper and use it in fallocate_chunk: gfs2_iomap_begin will become unsuitable for fallocate with proper iomap write support. In gfs2_block_map and fallocate_chunk, zero-initialize struct iomap. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2018-06-04gfs2: Remove ordered write mode handling from gfs2_trans_add_dataAndreas Gruenbacher
In journaled data mode, we need to add each buffer head to the current transaction. In ordered write mode, we only need to add the inode to the ordered inode list. So far, both cases are handled in gfs2_trans_add_data. This makes the code look misleading and is inefficient for small block sizes as well. Handle both cases separately instead. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2018-06-04gfs2: gfs2_stuffed_write_end cleanupAndreas Gruenbacher
First, change the sanity check in gfs2_stuffed_write_end to check for the actual write size instead of the requested write size. Second, use the existing teardown code in gfs2_write_end instead of duplicating it in gfs2_stuffed_write_end. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2018-06-04gfs2: hole_size improvementAndreas Gruenbacher
Reimplement function hole_size based on a generic function for walking the metadata tree and rename hole_size to gfs2_hole_size. While previously, multiple invocations of hole_size were sometimes needed to walk across the entire hole, the new implementation always returns the entire hole at once (provided that the caller is interested in the total size). Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2018-06-04rtc: sunxi: fix possible race conditionAlexandre Belloni
The IRQ is requested before the struct rtc is allocated and registered, but this struct is used in the IRQ handler. This may lead to a NULL pointer dereference. Switch to devm_rtc_allocate_device/rtc_register_device to allocate the rtc before requesting the IRQ. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-06-04GFS2: gfs2_free_extlen can return an extent that is too longBob Peterson
Function gfs2_free_extlen calculates the length of an extent of free blocks that may be reserved. The end pointer was calculated as end = start + bh->b_size but b_size is incorrect because the bitmap usually stops prior to the end of the buffer data on the last bitmap. What this means is that when you do a write, you can reserve a chunk of blocks that runs off the end of the last bitmap. For example, I've got a file system where there is only one bitmap for each rgrp, so ri_length==1. I saw cases in which iozone tried to do a big write, grabbed a large block reservation, chose rgrp 5464152, which has ri_data0 5464153 and ri_data 8188. So 5464153 + 8188 = 5472341 which is the end of the rgrp. When it grabbed a reservation it got back: 5470936, length 7229. But 5470936 + 7229 = 5478165. So the reservation starts inside the rgrp but runs 5824 blocks past the end of the bitmap. This patch fixes the calculation so it won't exceed the last bitmap. It also adds a BUG_ON to guard against overflows in the future. Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2018-06-04GFS2: Fix allocation error bug with recursive rgrp glockingAndreas Gruenbacher
Before this patch function gfs2_write_begin, upon discovering an error, called gfs2_trim_blocks while the rgrp glock was still held. That's because gfs2_inplace_release is not called until later. This patch reorganizes the logic a bit so gfs2_inplace_release is called to release the lock prior to the call to gfs2_trim_blocks, thus preventing the glock recursion. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2018-06-04gfs2: Update find_metapath commentAndreas Gruenbacher
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com>
2018-06-04ALSA: usb-audio: remove redundant check on errColin Ian King
The check on err is redundant as both the true and false paths end up on a break statement. Remove the redundant check. Detected by CoverityScan, CID#1268773 ("Identical code for different branches") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-04Merge branch 'regmap-4.17' into regmap-4.18 for the merge windowMark Brown
2018-06-04Merge branch 'spi-4.17' into spi-4.18 for the merge windowMark Brown
2018-06-04Merge branch 'for-next' into for-linusTakashi Iwai
4.18-rc1 merge material. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-04mmc: renesas_sdhi: really fix WP logic regressionsWolfram Sang
This reverts commit e060d376cc61 ("mmc: renesas_sdhi: fix WP detection") and adds some code to really fix the regressions. It was missed so far that Renesas R-Car instantiations of SDHI chose to disable internal WP and used the existence of "wp-gpios" to en/disable WP at all. With the first refactoring by Yamada-san with commit 2ad1db059b9a ("mmc: renesas_sdhi: use MMC_CAP2_NO_WRITE_PROTECT instead of TMIO own flag"), WP was always disabled even when GPIOs were present. With Wolfram's first fix which gets now reverted, GPIOs were honored. But when not available, the fallback was to internal WP and not to disabled WP. This caused wrong WP status on uSD card slots. Restore the old behaviour now. By default, WP is disabled. When a GPIO is found, the GPIO re-enables WP. We will think about possible better ways to handle this in the future. Tested on a previously regressing Renesas Lager board (H2) and a still working Renesas Salvator-X board (M3-W). Reported-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Cc: stable@vger.kernel.org # v4.17+ Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-06-04Merge branches 'acpi-soc' and 'acpi-tables'Rafael J. Wysocki
* acpi-soc: ACPI: APD: Add AMD misc clock handler support clk: x86: Add ST oscout platform clock ACPI / LPSS: Only call pwm_add_table() for Bay Trail PWM if PMIC HRV is 2 * acpi-tables: ACPI / tables: improve comments regarding acpi_parse_entries_array()
2018-06-04Merge branches 'acpi-cppc', 'acpi-misc', 'acpi-battery' and 'acpi-ac'Rafael J. Wysocki
* acpi-cppc: mailbox: PCC: erroneous error message when parsing ACPI PCCT ACPI / CPPC: Fix invalid PCC channel status errors ACPI / CPPC: Document CPPC sysfs interface cpufreq / CPPC: Support for CPPC v3 ACPI / CPPC: Check for valid PCC subspace only if PCC is used ACPI / CPPC: Add support for CPPC v3 * acpi-misc: ACPI: Add missing prototype_for arch_post_acpi_subsys_init() ACPI: add missing newline to printk * acpi-battery: ACPI / battery: Add quirk to avoid checking for PMIC with native driver ACPI / battery: Ignore AC state in handle_discharging on systems where it is broken ACPI / battery: Add handling for devices which wrongly report discharging state ACPI / battery: Remove initializer for unused ident dmi_system_id ACPI / AC: Remove initializer for unused ident dmi_system_id * acpi-ac: ACPI / AC: Add quirk to avoid checking for PMIC with native driver
2018-06-04Merge branch 'acpica'Rafael J. Wysocki
* acpica: ACPICA: Mark acpi_ut_create_internal_object_dbg() memory allocations as non-leaks ACPICA: Update version to 20180508 ACPICA: acpidump/acpixtract: Support for tables larger than 1MB ACPICA: Update version to 20180427 ACPICA: Debugger: Removed direct support for EC address space in "Test Objects" ACPICA: Debugger: Add Package support for "test objects" command ACPICA: Improve error messages for the namespace root node ACPICA: Fix potential infinite loop in acpi_rs_dump_byte_list ACPICA: vsnprintf: this statement may fall through ACPICA: Tables: Fix spelling mistake in comment ACPICA: iASL: Enhance the -tc option (create AML hex file in C) ACPICA: Convert acpi_gbl_hardware lock back to an acpi_raw_spinlock ACPICA: provide abstraction for raw_spinlock_t